Seiko Cal. 3831 - 346

This Spring Drive model from 1986 features a 44mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-7b2aee8868e9]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1986

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